Say goodbye to repairing file permissions in El Capitan

Repairing file permissions has long been a standard practice of many old-time Mac users. Debates have raged about its efficacy, but the bottom line is there's always been a way to do it in Apple's Disk Utility app, and if Apple lets you do it it, it must be okay, right? That changes with Disk Utility in El Capitan. Let's take a look.